/*
 * This program is free software: you can redistribute it and/or modify it under
 * the terms of the GNU General Public License as published by the Free Software
 * Foundation, either version 3 of the License, or (at your option) any later
 * version.
 * 
 * This program is distributed in the hope that it will be useful, but WITHOUT
 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
 * FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
 * details.
 * 
 * You should have received a copy of the GNU General Public License along with
 * this program. If not, see <http://www.gnu.org/licenses/>.
 */
package com.l2emu.gameserver.templates.item;

import java.util.List;

import javolution.util.FastList;

import com.l2emu.Config;
import com.l2emu.gameserver.model.L2Effect;
import com.l2emu.gameserver.model.L2ItemInstance;
import com.l2emu.gameserver.model.L2Object;
import com.l2emu.gameserver.model.L2Skill;
import com.l2emu.gameserver.model.actor.L2Character;
import com.l2emu.gameserver.model.actor.instance.L2SummonInstance;
import com.l2emu.gameserver.network.SystemMessageId;
import com.l2emu.gameserver.network.serverpackets.SystemMessage;
import com.l2emu.gameserver.skills.Env;
import com.l2emu.gameserver.skills.conditions.Condition;
import com.l2emu.gameserver.skills.funcs.Func;
import com.l2emu.gameserver.skills.funcs.FuncTemplate;
import com.l2emu.gameserver.templates.StatsSet;
import com.l2emu.gameserver.templates.effects.EffectTemplate;

/**
 * This class contains all informations concerning the item (weapon, armor, etc).<BR>
 * Mother class of :
 * <LI>L2Armor</LI>
 * <LI>L2EtcItem</LI>
 * <LI>L2Weapon</LI>
 * @version $Revision: 1.7.2.2.2.5 $ $Date: 2005/04/06 18:25:18 $
 */
public abstract class L2Item
{
	public static final int TYPE1_WEAPON_RING_EARRING_NECKLACE = 0;
	public static final int TYPE1_SHIELD_ARMOR = 1;
	public static final int TYPE1_ITEM_QUESTITEM_ADENA = 4;
	
	public static final int TYPE2_WEAPON = 0;
	public static final int TYPE2_SHIELD_ARMOR = 1;
	public static final int TYPE2_ACCESSORY = 2;
	public static final int TYPE2_QUEST = 3;
	public static final int TYPE2_MONEY = 4;
	public static final int TYPE2_OTHER = 5;
	public static final int TYPE2_PET_WOLF = 6;
	public static final int TYPE2_PET_HATCHLING = 7;
	public static final int TYPE2_PET_STRIDER = 8;
	public static final int TYPE2_PET_BABY = 9;
	public static final int TYPE2_PET_EVOLVEDWOLF = 10;
	
	public static final int SLOT_NONE = 0x0000;
	public static final int SLOT_UNDERWEAR = 0x0001;
	public static final int SLOT_R_EAR = 0x0002;
	public static final int SLOT_L_EAR = 0x0004;
	public static final int SLOT_LR_EAR = 0x00006;
	public static final int SLOT_NECK = 0x0008;
	public static final int SLOT_R_FINGER = 0x0010;
	public static final int SLOT_L_FINGER = 0x0020;
	public static final int SLOT_LR_FINGER = 0x0030;
	public static final int SLOT_HEAD = 0x0040;
	public static final int SLOT_R_HAND = 0x0080;
	public static final int SLOT_L_HAND = 0x0100;
	public static final int SLOT_GLOVES = 0x0200;
	public static final int SLOT_CHEST = 0x0400;
	public static final int SLOT_LEGS = 0x0800;
	public static final int SLOT_FEET = 0x1000;
	public static final int SLOT_BACK = 0x2000;
	public static final int SLOT_LR_HAND = 0x4000;
	public static final int SLOT_FULL_ARMOR = 0x8000;
	public static final int SLOT_HAIR = 0x010000;
	public static final int SLOT_ALLDRESS = 0x020000;
	public static final int SLOT_HAIR2 = 0x040000;
	public static final int SLOT_HAIRALL = 0x080000;
	public static final int SLOT_R_BRACELET = 0x100000;
	public static final int SLOT_L_BRACELET = 0x200000;
	public static final int SLOT_DECO = 0x400000;
	public static final int SLOT_BELT = 0x10000000;
	public static final int SLOT_WOLF = -100;
	public static final int SLOT_HATCHLING = -101;
	public static final int SLOT_STRIDER = -102;
	public static final int SLOT_BABYPET = -103;
	public static final int SLOT_GREATWOLF = -104;
	
	public static final int MATERIAL_STEEL = 0x00; // ??
	public static final int MATERIAL_FINE_STEEL = 0x01; // ??
	public static final int MATERIAL_BLOOD_STEEL = 0x02; // ??
	public static final int MATERIAL_BRONZE = 0x03; // ??
	public static final int MATERIAL_SILVER = 0x04; // ??
	public static final int MATERIAL_GOLD = 0x05; // ??
	public static final int MATERIAL_MITHRIL = 0x06; // ??
	public static final int MATERIAL_ORIHARUKON = 0x07; // ??
	public static final int MATERIAL_PAPER = 0x08; // ??
	public static final int MATERIAL_WOOD = 0x09; // ??
	public static final int MATERIAL_CLOTH = 0x0a; // ??
	public static final int MATERIAL_LEATHER = 0x0b; // ??
	public static final int MATERIAL_BONE = 0x0c; // ??
	public static final int MATERIAL_HORN = 0x0d; // ??
	public static final int MATERIAL_DAMASCUS = 0x0e; // ??
	public static final int MATERIAL_ADAMANTAITE = 0x0f; // ??
	public static final int MATERIAL_CHRYSOLITE = 0x10; // ??
	public static final int MATERIAL_CRYSTAL = 0x11; // ??
	public static final int MATERIAL_LIQUID = 0x12; // ??
	public static final int MATERIAL_SCALE_OF_DRAGON = 0x13; // ??
	public static final int MATERIAL_DYESTUFF = 0x14; // ??
	public static final int MATERIAL_COBWEB = 0x15; // ??
	public static final int MATERIAL_SEED = 0x15; // ??
	
	public static final int CRYSTAL_NONE = 0x00; // ??
	public static final int CRYSTAL_D = 0x01; // ??
	public static final int CRYSTAL_C = 0x02; // ??
	public static final int CRYSTAL_B = 0x03; // ??
	public static final int CRYSTAL_A = 0x04; // ??
	public static final int CRYSTAL_S = 0x05; // ??
	public static final int CRYSTAL_S80 = 0x06; // ??
	public static final int CRYSTAL_S84 = 0x07; // ??
	
	private static final int[] crystalItemId =
	{
		0, 1458, 1459, 1460, 1461, 1462, 1462, 1462
	};
	private static final int[] crystalEnchantBonusArmor =
	{
		0, 11, 6, 11, 19, 25, 25, 25
	};
	private static final int[] crystalEnchantBonusWeapon =
	{
		0, 90, 45, 67, 144, 250, 250, 250
	};
	
	private final int _itemId;
	private final String _name;
	private final int _type1; // needed for item list (inventory)
	private final int _type2; // different lists for armor, weapon, etc
	private final int _weight;
	private final boolean _crystallizable;
	private final boolean _stackable;
	private final int _materialType;
	private final int _crystalType; // default to none-grade
	private final int _duration;
	private final int _time;
	private final int _bodyPart;
	private final int _referencePrice;
	private final int _crystalCount;
	private final boolean _sellable;
	private final boolean _dropable;
	private final boolean _destroyable;
	private final boolean _tradeable;
	
	@SuppressWarnings("unchecked")
	protected final Enum _type;
	
	protected FuncTemplate[] _funcTemplates;
	protected EffectTemplate[] _effectTemplates;
	protected L2Skill[] _skills;
	protected List <Condition> _preConditions = new FastList<Condition>();
	
	private static final Func[] _emptyFunctionSet = new Func[0];
	protected static final L2Effect[] _emptyEffectSet = new L2Effect[0];
	
	/**
	 * Constructor of the L2Item that fill class variables.<BR><BR>
	 * <U><I>Variables filled :</I></U><BR>
	 * <LI>type</LI>
	 * <LI>_itemId</LI>
	 * <LI>_name</LI>
	 * <LI>_type1 & _type2</LI>
	 * <LI>_weight</LI>
	 * <LI>_crystallizable</LI>
	 * <LI>_stackable</LI>
	 * <LI>_materialType & _crystalType & _crystlaCount</LI>
	 * <LI>_duration</LI>
	 * <LI>_bodypart</LI>
	 * <LI>_referencePrice</LI>
	 * <LI>_sellable</LI>
	 * @param type : Enum designating the type of the item
	 * @param set : StatsSet corresponding to a set of couples (key,value) for description of the item
	 */
	protected L2Item(Enum<?> type, StatsSet set)
	{
		_type = type;
		_itemId = set.getInteger("item_id");
		_name = set.getString("name");
		_type1 = set.getInteger("type1"); // needed for item list (inventory)
		_type2 = set.getInteger("type2"); // different lists for armor, weapon, etc
		_weight = set.getInteger("weight");
		_crystallizable = set.getBool("crystallizable");
		_stackable = set.getBool("stackable", false);
		_materialType = set.getInteger("material");
		_crystalType = set.getInteger("crystal_type", CRYSTAL_NONE); // default to none-grade
		_duration = set.getInteger("duration");
		_time = set.getInteger("time");
		_bodyPart = set.getInteger("bodypart");
		_referencePrice = set.getInteger("price");
		_crystalCount = set.getInteger("crystal_count", 0);
		_sellable = set.getBool("sellable", true);
		_dropable = set.getBool("dropable", true);
		_destroyable = set.getBool("destroyable", true);
		_tradeable = set.getBool("tradeable", true);
	}
	
	/**
	 * Returns the itemType.
	 * @return Enum
	 */
	@SuppressWarnings("unchecked")
	public Enum getItemType()
	{
		return _type;
	}
	
	/**
	 * Returns the duration of the item
	 * @return int
	 */
	public final int getDuration()
	{
		return _duration;
	}
	
	/**
	 * Returns the time of the item
	 * @return int
	 */
	public final int getTime()
	{
		return _time;
	}
	/**
	 * Returns the ID of the iden
	 * @return int
	 */
	public final int getItemId()
	{
		return _itemId;
	}
	
	public abstract int getItemMask();
	
	/**
	 * Return the type of material of the item
	 * @return int
	 */
	public final int getMaterialType()
	{
		return _materialType;
	}
	
	/**
	 * Returns the type 2 of the item
	 * @return int
	 */
	public final int getType2()
	{
		return _type2;
	}
	
	/**
	 * Returns the weight of the item
	 * @return int
	 */
	public final int getWeight()
	{
		return _weight;
	}
	
	/**
	 * Returns if the item is crystallizable
	 * @return boolean
	 */
	public final boolean isCrystallizable()
	{
		return _crystallizable;
	}
	
	/**
	 * Return the type of crystal if item is crystallizable
	 * @return int
	 */
	public final int getCrystalType()
	{
		return _crystalType;
	}
	
	/**
	 * Return the type of crystal if item is crystallizable
	 * @return int
	 */
	public final int getCrystalItemId()
	{
		return crystalItemId[_crystalType];
	}
	
	/**
	 * Returns the grade of the item.<BR><BR>
	 * <U><I>Concept :</I></U><BR>
	 * In fact, this fucntion returns the type of crystal of the item.
	 * @return int
	 */
	public final int getItemGrade()
	{
		return getCrystalType();
	}
	
	/**
	 * Returns the quantity of crystals for crystallization
	 * @return int
	 */
	public final int getCrystalCount()
	{
		return _crystalCount;
	}
	
	/**
	 * Returns the quantity of crystals for crystallization on specific enchant level
	 * @return int
	 */
	public final int getCrystalCount(int enchantLevel)
	{
		if (enchantLevel > 3)
			switch (_type2)
			{
				case TYPE2_SHIELD_ARMOR:
				case TYPE2_ACCESSORY:
					return _crystalCount + crystalEnchantBonusArmor[getCrystalType()] * (3 * enchantLevel - 6);
				case TYPE2_WEAPON:
					return _crystalCount + crystalEnchantBonusWeapon[getCrystalType()] * (2 * enchantLevel - 3);
				default:
					return _crystalCount;
			}
		else if (enchantLevel > 0)
			switch (_type2)
			{
				case TYPE2_SHIELD_ARMOR:
				case TYPE2_ACCESSORY:
					return _crystalCount + crystalEnchantBonusArmor[getCrystalType()] * enchantLevel;
				case TYPE2_WEAPON:
					return _crystalCount + crystalEnchantBonusWeapon[getCrystalType()] * enchantLevel;
				default:
					return _crystalCount;
			}
		else
			return _crystalCount;
	}
	
	/**
	 * Returns the name of the item
	 * @return String
	 */
	public final String getName()
	{
		return _name;
	}
	
	/**
	 * Return the part of the body used with the item.
	 * @return int
	 */
	public final int getBodyPart()
	{
		return _bodyPart;
	}
	
	/**
	 * Returns the type 1 of the item
	 * @return int
	 */
	public final int getType1()
	{
		return _type1;
	}
	
	/**
	 * Returns if the item is stackable
	 * @return boolean
	 */
	public final boolean isStackable()
	{
		return _stackable;
	}
	
	/**
	 * Returns if the item is consumable
	 * @return boolean
	 */
	public boolean isConsumable()
	{
		return false;
	}
	
	public boolean isEquipable()
	{
		return this.getBodyPart() != 0 && !(this.getItemType() instanceof L2EtcItemType);
	}
	
	/**
	 * Returns the price of reference of the item
	 * @return int
	 */
	public final int getReferencePrice()
	{
		return (isConsumable() ? (int)(_referencePrice * Config.RATE_CONSUMABLE_COST) : _referencePrice);
	}
	
	/**
	 * Returns if the item can be sold
	 * @return boolean
	 */
	public final boolean isSellable()
	{
		return _sellable;
	}
	
	/**
	 * Returns if the item can dropped
	 * @return boolean
	 */
	public final boolean isDropable()
	{
		return _dropable;
	}
	
	/**
	 * Returns if the item can destroy
	 * @return boolean
	 */
	public final boolean isDestroyable()
	{
		return _destroyable;
	}
	
	/**
	 * Returns if the item can add to trade
	 * @return boolean
	 */
	public final boolean isTradeable()
	{
		return _tradeable;
	}
	
	/**
	 * Returns if item is for hatchling
	 * @return boolean
	 */
	public boolean isForHatchling()
	{
		return (_type2 == TYPE2_PET_HATCHLING);
	}
	
	/**
	 * Returns if item is for strider
	 * @return boolean
	 */
	public boolean isForStrider()
	{
		return (_type2 == TYPE2_PET_STRIDER);
	}
	
	/**
	 * Returns if item is for wolf
	 * @return boolean
	 */
	public boolean isForWolf()
	{
		return (_type2 == TYPE2_PET_WOLF);
	}
	
	/**
	 * Returns if item is for Great wolf
	 * @return boolean
	 */
	public boolean isForEvolvedWolf()
	{
		return (_type2 == TYPE2_PET_EVOLVEDWOLF);
	}
	
	/**
	 * Returns if item is for wolf
	 * @return boolean
	 */
	public boolean isForBabyPet()
	{
		return (_type2 == TYPE2_PET_BABY);
	}
	
	/**
	 * Returns array of Func objects containing the list of functions used by the item
	 * @param instance : L2ItemInstance pointing out the item
	 * @param player : L2Character pointing out the player
	 * @return Func[] : array of functions
	 */
	public Func[] getStatFuncs(L2ItemInstance instance, L2Character player)
	{
		if (_funcTemplates == null)
			return _emptyFunctionSet;
		List<Func> funcs = new FastList<Func>();
		for (FuncTemplate t : _funcTemplates)
		{
			Env env = new Env();
			env.player = player;
			env.target = player;
			env.item = instance;
			Func f = t.getFunc(env, this); // skill is owner
			if (f != null)
				funcs.add(f);
		}
		if (funcs.isEmpty())
			return _emptyFunctionSet;
		return funcs.toArray(new Func[funcs.size()]);
	}
	
	/**
	 * Returns the effects associated with the item.
	 * @param instance : L2ItemInstance pointing out the item
	 * @param player : L2Character pointing out the player
	 * @return L2Effect[] : array of effects generated by the item
	 */
	public L2Effect[] getEffects(L2ItemInstance instance, L2Character player)
	{
		if (_effectTemplates == null)
			return _emptyEffectSet;
		List<L2Effect> effects = new FastList<L2Effect>();
		for (EffectTemplate et : _effectTemplates)
		{
			Env env = new Env();
			env.player = player;
			env.target = player;
			env.item = instance;
			L2Effect e = et.getEffect(env);
			if (e != null)
			{
				e.scheduleEffect();
				effects.add(e);
			}
		}
		if (effects.isEmpty())
			return _emptyEffectSet;
		return effects.toArray(new L2Effect[effects.size()]);
	}
	
	/**
	 * Returns effects of skills associated with the item.
	 * @param caster : L2Character pointing out the caster
	 * @param target : L2Character pointing out the target
	 * @return L2Effect[] : array of effects generated by the skill
	 
	public L2Effect[] getSkillEffects(L2Character caster, L2Character target)
	{
		if (_skills == null)
			return _emptyEffectSet;
		List<L2Effect> effects = new FastList<L2Effect>();
		
		for (L2Skill skill : _skills)
		{
			if (!skill.checkCondition(caster, target, true))
				continue; // Skill condition not met
				
			if (target.getFirstEffect(skill.getId()) != null)
				target.removeEffect(target.getFirstEffect(skill.getId()));
			for (L2Effect e : skill.getEffects(caster, target))
				effects.add(e);
		}
		if (effects.isEmpty())
			return _emptyEffectSet;
		return effects.toArray(new L2Effect[effects.size()]);
	}
	*/
	/**
	 * Add the FuncTemplate f to the list of functions used with the item
	 * @param f : FuncTemplate to add
	 */
	public void attach(FuncTemplate f)
	{
		// If _functTemplates is empty, create it and add the FuncTemplate f in it
		if (_funcTemplates == null)
		{
			_funcTemplates = new FuncTemplate[]
			{
				f
			};
		}
		else
		{
			int len = _funcTemplates.length;
			FuncTemplate[] tmp = new FuncTemplate[len + 1];
			// Definition : arraycopy(array source, begins copy at this position of source, array destination, begins copy at this position in dest,
			//						  number of components to be copied)
			System.arraycopy(_funcTemplates, 0, tmp, 0, len);
			tmp[len] = f;
			_funcTemplates = tmp;
		}
	}
	
	/**
	 * Add the EffectTemplate effect to the list of effects generated by the item
	 * @param effect : EffectTemplate
	 */
	public void attach(EffectTemplate effect)
	{
		if (_effectTemplates == null)
		{
			_effectTemplates = new EffectTemplate[]
			{
				effect
			};
		}
		else
		{
			int len = _effectTemplates.length;
			EffectTemplate[] tmp = new EffectTemplate[len + 1];
			// Definition : arraycopy(array source, begins copy at this position of source, array destination, begins copy at this position in dest,
			//						  number of components to be copied)
			System.arraycopy(_effectTemplates, 0, tmp, 0, len);
			tmp[len] = effect;
			_effectTemplates = tmp;
		}
	}
	
	/**
	 * Add the L2Skill skill to the list of skills generated by the item
	 * @param skill : L2Skill
	 */
	public void attach(L2Skill skill)
	{
		if (_skills == null)
		{
			_skills = new L2Skill[]
			{
				skill
			};
		}
		else
		{
			int len = _skills.length;
			L2Skill[] tmp = new L2Skill[len + 1];
			// Definition : arraycopy(array source, begins copy at this position of source, array destination, begins copy at this position in dest,
			//                        number of components to be copied)
			System.arraycopy(_skills, 0, tmp, 0, len);
			tmp[len] = skill;
			_skills = tmp;
		}
	}
	
    public final void attach(Condition c)
    {
    	if (!_preConditions.contains(c))
    		_preConditions.add(c);
    }
    
    public final L2Skill[] getItemSkills()
    {
    	return _skills;
    }
    
    public boolean checkCondition(L2Character activeChar, L2Object target)
    {
    	if (activeChar.isGM() && !Config.GM_ITEM_RESTRICTION)
    		return true;
    	for (Condition preCondition : _preConditions)
    	{
	        if (preCondition == null) return true;
	
	        Env env = new Env();
	        env.player = activeChar;
	        if (target instanceof L2Character) // TODO: object or char?
	        	env.target = (L2Character)target;
	
	        if (!preCondition.test(env))
	        {
	        	if (activeChar instanceof L2SummonInstance)
	        	{
	        		((L2SummonInstance)activeChar).getOwner().sendPacket(new SystemMessage(SystemMessageId.PET_CANNOT_USE_ITEM));
	        		return false;
	        	}
	            String msg = preCondition.getMessage();
	            int msgId = preCondition.getMessageId();
	            
	            if (msg != null)
	            {
	                activeChar.sendMessage(msg);
	            }
	            else if (msgId !=0)
	            {
	            	SystemMessage sm = new SystemMessage(msgId);
	            	if (preCondition.isAddName())
	            		sm.addItemName(_itemId);
	            	activeChar.sendPacket(sm);
	            }
	            return false;
	        }
    	}
        return true;
    }
	
	/**
	 * Returns the name of the item
	 * @return String
	 */
	@Override
	public String toString()
	{
		return _name;
	}
}
